20303342 has 16 divisors (see below), whose sum is σ = 32458752. Its totient is φ = 9502680.

The previous prime is 20303329. The next prime is 20303347. The reversal of 20303342 is 24330302.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 20303342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2534 + ... + 6857.

It is an arithmetic number, because the mean of its divisors is an integer number (2028672).

Almost surely, 2^20303342 is an apocalyptic number.

20303342 is a deficient number, since it is larger than the sum of its proper divisors (12155410).

20303342 is a wasteful number, since it uses less digits than its factorization.

20303342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9463.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 20303342 is about 4505.9229909087. The cubic root of 20303342 is about 272.8072095714.

Adding to 20303342 its reverse (24330302), we get a palindrome (44633644).

The spelling of 20303342 in words is "twenty million, three hundred three thousand, three hundred forty-two".